Which network device works at the Application layer by reconstructing packets and forwarding them to Web servers?
A) Layer 7 switch
B) translating gateway
C) proxy server
D) ICMP redirector

Question

Quizplus · Accepted Answer

A proxy server works at the Application layer by intercepting client requests and forwarding them to Web servers. It also reconstructs packets to optimize transmission and caching. This allows the proxy server to improve performance for clients by providing faster access to frequently requested resources, and by filtering content for security, anonymity, and compliance purposes. A Layer 7 switch and a translating gateway are also capable of operating at the Application layer, but typically they focus on load balancing and protocol conversion, respectively. An ICMP redirector, on the other hand, operates at the Internet layer and is used to inform hosts of a better route to a destination. Therefore, the most appropriate answer is C, proxy server.

Which Network Device Works at the Application Layer by Reconstructing